I have recently played the game Cities Skylines with a mod called "OverLayer". This mod is supposed to overlay images on the game world to allow modelling following existing real maps for example.
I have loaded a large image into the mod, the png has about 15kx15k pixels, 24bit. This would probably require some up to one GB of RAM to load. But it makes the game crash. not only the game, it actually takes some other applications down with it. So I think this app is actually overwriting other apps memory. When I watch the systems memory consumption, it never looks like it consumes all available RAM, there is definitely enough of it, the system has 32GB ram. It never hits the limit, at least not in taskman or resmon. I was under the assumption that in a windows host you can allocate memory only through the OS functions, and symptoms like this should not happen. Do I have to correct my concepts?